feat: Add gql.tada/ts-plugin alias

[kitten]

Dependent on microsoft/TypeScript#57266
Resolves #75

Summary

We're waiting for TypeScript to support sub-paths for tsserver plugins to ease the installation instructions back down to a single package and avoid having to explain the different between @0no-co/graphqlsp and gql.tada to people.

This would turn gql.tada into a standalone entrypoint package for its experience.

Set of changes

• Add gql.tada/ts-plugin alias

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Latest commit: 0e44b3b

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[kitten]

Opening as ready since TypeScript 5.5 was announced and a beta (5.5.0) is ready. Fix is part of this release: microsoft/TypeScript@ef091bf

We could consider renaming this to gql.tada/ts-plugin instead of gql.tada/lsp though.

Another note is that we may want to update the init command. We can also add a check for doctor against the installed typescript version (<5.5 wouldn't work with this alias of course and we can detect that)

Docs wouldn't be updated until at least 5.5 is stable. Even then we may need a note for this, but I've already been considering adding a recommendation to run gql.tada doctor as another step to the "Installation" guide.